2千克比1500克多____克。

某兴趣小组在“探究影响种子萌发的环境条件”时，选取四个干净的同种锥形瓶，编号为甲、乙、丙、丁，分别放入20粒完整有活力的相同种子，在如下不同条件中培养。请回答：

要求：1). 表达清楚，语句通顺，意思连贯；

      2). 要点须包括表格中的信息，但不要使用真实姓名和校名等；

      3). 词数：80左右。信的开头与结尾已给出，不计入总词数。

提示词：there be, kitchen, have a party(聚会), do one's homework（做某人的作业）

My Dream Home

    I'd like to tell you about my dream home.    

阅读下面材料，在空白处填入适当的内容（不多于3个单词）或括号内单词的正确形式。

Once there was a free bird. She floated in the sky,____(catch) worms for lunch and swam in the summer rain trickles(滴), like many ____birds. But she had a habit:____some event occurred in her life, whether good or bad, the bird would pick up a stone ____the ground to memorize it. Every day she sorted out her stones, laughed remembering joyful events, and cried remembering the sad ones.

The bird always took the stones with her, whether she was flying in the sky or walking on ____earth, and she never forgot about them. Years had passed ____the free bird got a lot of stones, but she still kept on sorting them out, remembering the past. It was becoming more and more difficult for her to fly.

The bird was unable to move on her own，____could she catch worms anymore. Only rare rain gave her the necessary energy.But the bird ____(brave) endured all the hardships, ____(guard) her precious memories. After some time the bird died of ____ (starve) and thirst.